Master Chen talks about one of the fundamental things we are trying to do to the body is make it into two pieces, like a pair of scissors, or a knife that cuts down onto a chopping block. It’s very deceptive visually, but the feeling is often like being sliced in half diagonally through the abdominal region, but it can be applied in many different ways. This is a great video that gives a really good look and gives instructions how to create the relationship.